Sterilisatie beïnvloedt de levensverwachting
Geplaatst: 18 dec 2012, 21:38
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Deze link heb ik ook in een ander topic geplaatst, maar ik zet hem ook even hier bij Gezondheid. Er staan namelijk een aantal voor mij onbekende zaken in. O.a. dat niet-gesteriliseerde teefjes langer leven dan gesteriliseerde. Althans bij Rottweilers is dat zo. Op blz. 2 van het artikel onder het kopje: Sterilization Affects Life Span staat dit:
“We found that how long females keep their ovaries determines in part how long they live,” says lead investigator David J. Waters, D.V.M., Ph.D., DACVS, director of The Center for Exceptional Longevity Studies at the Gerald P. Murphy Cancer Foundation in West Lafayette, Ind. “Importantly, our study showed that bitches that kept their ovaries until they were at least 6 years of age were 4.6 times more likely to reach exceptional longevity than those with the shortest ovary exposure.”
The researchers also studied 237 Rottweiler females that died before 13 years of age and found that removing the ovaries before 4 years of age reduced longevity by an average of 1.4 years and reduced threefold the likelihood of reaching exceptional longevity. The results suggest that ovaries may have a protective effect on the body and that removing the sexual glands puts bitches at higher risk for developing diseases.
“Our recent observation that dogs with intact ovaries live longer is counter to four decades of standard clinical practice, which advocated early elective ovary removal,” Waters says. “We hope to identify exactly what the ovary-related processes are that influence aging and to learn the optimum length of time the ovaries should be retained to maximize health benefits. The ovary story is the first of many research results to follow in the field of aging and longevity that dog owners and their veterinarians will have to sift through.”
Weer een argument om niet te vroeg te laten steriliseren.
Hanneke
Deze link heb ik ook in een ander topic geplaatst, maar ik zet hem ook even hier bij Gezondheid. Er staan namelijk een aantal voor mij onbekende zaken in. O.a. dat niet-gesteriliseerde teefjes langer leven dan gesteriliseerde. Althans bij Rottweilers is dat zo. Op blz. 2 van het artikel onder het kopje: Sterilization Affects Life Span staat dit:
“We found that how long females keep their ovaries determines in part how long they live,” says lead investigator David J. Waters, D.V.M., Ph.D., DACVS, director of The Center for Exceptional Longevity Studies at the Gerald P. Murphy Cancer Foundation in West Lafayette, Ind. “Importantly, our study showed that bitches that kept their ovaries until they were at least 6 years of age were 4.6 times more likely to reach exceptional longevity than those with the shortest ovary exposure.”
The researchers also studied 237 Rottweiler females that died before 13 years of age and found that removing the ovaries before 4 years of age reduced longevity by an average of 1.4 years and reduced threefold the likelihood of reaching exceptional longevity. The results suggest that ovaries may have a protective effect on the body and that removing the sexual glands puts bitches at higher risk for developing diseases.
“Our recent observation that dogs with intact ovaries live longer is counter to four decades of standard clinical practice, which advocated early elective ovary removal,” Waters says. “We hope to identify exactly what the ovary-related processes are that influence aging and to learn the optimum length of time the ovaries should be retained to maximize health benefits. The ovary story is the first of many research results to follow in the field of aging and longevity that dog owners and their veterinarians will have to sift through.”
Weer een argument om niet te vroeg te laten steriliseren.
Hanneke